Major Sources

Government Accountability Office

Congressional Research Service

Congressional Budget Office

Office of Technology Assessment

Center for Army Lessons Learned

Environmental Reports

Other Sources
2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997	1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 Other